<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title>尺寸属性</title>
		<style>
			span{
				font-size: 2em;
				color: rgb(85,255,0);
				background-color: rgb(86,135,72,.1);
			}
			div#container{
				background-color: #00ffff;
			}
			div.box{
				background-color: #ff0000;
				color: #fff;
				width: 80%;
				ma x-width: 150px;
				min-width: 200px;
			}
		</style>
	</head>
	<body>
		<span>lorem</span>
		
	</body>
</html>